Chemistry, 21.04.2020 15:48 borgesalfonso12

A certain substance X has a normal freezing point of 5.6 °C and a molal freezing point depression constant Kf-7.78 °C-kg·mol-1. A solution is prepared by dissolving some urea ((NH2)2CO) in 550. g of Χ. This solution freezes at-0.9 °C. Calculate the mass of urea that was dissolved. Be sure your answer has the correct number of significant digits.

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A certain substance X has a normal freezing point of 5.6 °C and a molal freezing point depression co...